3d dusting sheet and  method for manufacturing the same

ABSTRACT

A 3D dusting sheet comprising a base sheet, an electrostatic dusting sheet on the base sheet, and one or more linings disposed between the base sheet and the electrostatic dusting sheet, wherein the one or more linings bulge partially a main body of the electrostatic dusting sheet, such that a surface of the 3D dusting sheet becomes three-dimensional. Meanwhile, one or more three-dimensional spaces are formed on the surface of the 3D dusting sheet, whereby a large amount of dirt is gathered in the one or more three-dimensional spaces, and the effect of scraping and collecting the dust or dirt at the same time may be achieved by the 3D dusting sheet during cleaning.

BACKGROUND

1. Technical Field

The present invention relates to dusting sheets, and in particular to a 3D dusting sheet, which includes a multi-layer structure and a surface thereof is three-dimensional, and a method for manufacturing the same is also included in the present invention.

2. Prior Art

FIG. 1 shows a utility model patent, TW 592118, entitled “Improved 3D Dusting Paper”. As shown in the figure, the utility model patent is basically characterized in that a storage layer 911 is respectively disposed on the two sides of the middle layer 912 of the dusting paper having multiple layers, wherein a plurality of storage spaces 99 are carved out in the storage layer 911 for storing dirt or dust in the storage spaces 99. A plurality of fins 98 extending in different directions are disposed on the storage spaces 9 9. The fins 98 are further adhered to the storage layer 911 with high frequency bounding to make the fins 98 and the storage spaces 99 cooperate with each other. An adhesion portion is respectively disposed on the two sides of the storage layer 911 for adhering the main body 91 of the dusting paper onto the main body 92 of a mop (see FIG. 2), and a plurality of dust or dirt in the storage spaces 99, since a large amount of dust or dirt tends to gather on the perimeter of the dusting paper and move along with the perimeter of the dusting paper while the dusting paper are in contact with the objects to be cleaned (e.g. the floor), only a few dirt may move to the center of the dusting paper, which results in failure to completely exert the dusting effect of the dusting paper or cloth.

SUMMARY OF THE INVENTION

In view of the defects of the prior art, the present invention provides a 3D dusting sheet and a method for manufacturing the same, wherein the 3D dusting sheet comprises a structure in which one or more linings are disposed between the base sheet and the electrostatic dusting sheet, such that the surface of the 3D dusting sheet becomes three-dimensional, whereby a large amount of dirt is gathered in one or more three-dimensional spaces. Since the surface of the 3D dusting sheet is three-dimensional, the friction may be more concentrated during cleaning, and the effect of scraping and collecting the dust or dirt at the same time may be achieved. Regarding the method for manufacturing the same, the 3D dusting sheet is formed by partially re-incorporating the leftovers generated by trimming the fabrics during the process in-between the base sheet and the electrostatic dusting sheet through guiding means. In such a manner, a 3D dusting sheet with excellent capability can be manufactured economically.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a cross-sectional view of a conventional dusting sheet;

FIG. 2 shows the state of the conventional dusting sheet in use;

FIG. 3 is a partially enlarged view of the conventional dusting sheet;

FIGS. 4A and 4B are respectively a top view and a cross-sectional view of the dusting sheet according to the present invention;

FIG. 5 is a schematic view of the 3D dusting sheet according to the first embodiment of the present invention;

FIG. 6 is a schematic view of the 3D dusting sheet according to the second embodiment of the present invention;

FIG. 7 is a schematic view of the 3D dusting sheet according to the third embodiment of the present invention;

FIG. 8 is a schematic view of the 3D dusting sheet of the present invention collecting dust in practice.

DETAILED DESCRIPTION

In order to achieve the aforesaid objectives of the invention, a preferred embodiment of the present invention is provided herein. Please refer to FIG. 4A, which is a top view of the dusting sheet according to the present invention, wherein the chain line indicated by the two arrows is the reference line along which the cross-sectional view of FIG. 4B is taken. As shown in FIGS. 4A and 4B, the main body (1) of the dusting sheet comprises a base sheet (24) and an electrostatic dusting sheet (21), and a plurality of linings (22) are disposed between the base sheet (24) and the electrostatic dusting sheet (21) for bulging partially the main body (1) of the dusting sheet, so as to form the solid layers as shown in the figure. The electrostatic dusting sheet (21) including the multi-layer structure is carved by cutter wheel to form a plurality of triangular fins (7), and a plurality of storage spaces (9) are further disposed under the fins (7) correspondingly. The fins (7) help shove the dust or dirt into the storage spaces (9) for storing the dust or dirt, and in cooperation with the main body (1) of the dusting sheet partially stuffed with the linings (22), a dusting sheet comprising multiple inter-layer profiles can be formed thereby to achieve excellent dusting effect.

The linings (22) used in the embodiments of the present invention are leftover cloth straps generated in the manufacturing process of the electrostatic dusting sheet (21). As shown in FIGS. 4A and 4B, since the electrostatic dusting sheet (21) is trimmed to be narrower than the base sheet (24), the leftovers of the margin of the electrostatic dusting sheet (21) may be used as the basic material of the linings (22), and the width of the linings (22) may be adjusted according to the desired size of the leftovers. Please refer to FIG. 5, which shows the first embodiment of the present invention, wherein each of the two linings (22) is disposed between the base sheet (24) and the electrostatic dusting sheet (21), and the bold lines in the figure indicates the positions where the two linings (22) are installed. As a result, the main body (1) of the dusting sheet according to the first embodiment may partially bulge at the portions stuffed with the linings (22), thereby forming two elongate bulgy portions on the main body (1) of the dusting sheet, as shown in the cross-sectional view of FIG. 4B. When the 3D dusting sheet of the present invention is applied, the elongate gap between the two bulgy portions and the outer sides of the two bulgy portions may store a large amount of dust or dirt, such that by this three-dimensional design, the friction may be concentrated on the bulgy portions of the 3D dusting sheet during cleaning, and the effect of scraping and collecting the dust or dirt at the same time may be achieved.

Next, please refer to FIG. 6, which shows the second embodiment of the present invention. As shown by the bold lines in the figure, the linings (22) overlap each other by halves. Therefore, due to the thickness of the linings (22), the overlapped middle portion of the linings (22) is higher; that is, the middle portion of main body (1) of the dusting sheet bulges to be higher, and the height gradually degrades toward the lateral sides. According to such an arrangement of the linings (22), the friction may be mainly concentrated on the middle portion of the main body (1) of the dusting sheet, and the effect of scraping dust or dirt may be achieved. Particularly to a wet surface to be cleaned, the 3D dusting sheet according to this embodiment may function as a scraper to scrape off the dirt and collect the dirt on the two lateral sides of the middle bulgy portion.

Please refer to FIG. 7, which shows the third embodiment of the present invention. As shown by the bold lines in the figure, the linings are disposed substantially in an S-shape for increasing the friction on the main body (1) of the dusting sheet. Since the linings (22) are disposed substantially in the S-shape on the main body (1) of the dusting sheet, the user may find the friction applied onto the entire main body (1) of the dusting sheet uniformly during manipulation and experience better feel of handling while achieving the effect of scraping and collecting the dust or dirt at the same time.

Next, please refer to FIG. 8, which is a schematic view of the 3D dusting sheet of the present invention collecting dust in practice. As shown in the figure, the portion stuffed with the linings (22) in the middle is bulged. If the 3D dusting sheet sweeps from the left to the right, a large amount of dust (23) can be collected on the right side of the 3D dusting sheet, and the particles with irregular mass and shape are collected between the fins (7) and the storage spaces (9), as shown in the figure. The electrostatic dusting sheet (21) used in the present invention may be made of ultra-electrostatic micro-porous fiber, and the base sheet can be made of chemical fiber or natural fiber, in particular a non-woven fabric formed of fusible fiber. The linings (22) may be made with the leftovers generated in the manufacturing process of the 3D dusting sheet or another material from another source.

The process of manufacturing the 3D dusting sheet of the present invention includes:

-   -   preparing in advance a base sheet (24) and an electrostatic         dusting sheet (21) which are rolled up;     -   guiding the base sheet (24) and the electrostatic dusting sheet         (21) which are rolled up to be continuous to a guide pulley         respectively;     -   during the process, the electrostatic dusting sheet (21) is sent         through a cutter wheel, whereby a plurality of triangular fins         (7) are carved out on the electrostatic dusting sheet (21) by         the cutter wheel and a plurality of storage spaces (9) are         formed; meanwhile, the margins of the electrostatic dusting         sheet (21) are trimmed by the cutter wheel and the trimmed-off         leftovers are obtained;     -   re-incorporating the leftovers of the electrostatic dusting         sheet (21) trimmed to be straps into the process by guiding         means, so as to employ the leftovers as the linings (22) and         overlie the linings on the electrostatic dusting sheet (21) in         any required shape according to the arrangement of the linings         (22) mentioned by the above embodiments;     -   combining the base sheet (24), the electrostatic dusting sheet         (21), and the linings (22) formed by the leftovers by fusion to         form continuous 3D dusting sheet;     -   trimming the prepared continuous 3D dusting sheet by cutting         means to obtain a 3D dusting sheet with a desired length.

The aforementioned process utilizes fusion means to combine the base sheet (24), the electrostatic dusting sheet (21), and the linings (22). However, ultrasonic spot welding may be utilized to weld the each layer of material by spot for reducing the power consumption of welding apparatus. Undoubtedly, it is also possible to secure each layer of material and the linings by physical stitching means.

It is preferred that the 3D dusting sheet of the present invention be used with a mop having a flat panel.

As for the electrostatic dusting sheet (21), it may be made of 100% of chemical fiber so as to cause electrostatic phenomenon spontaneously under friction. In addition, the electrostatic dusting sheet (21) may be imbued with negative voltage such that the body or fibers of the electrostatic dusting sheet carry negative electrons to provide the electrostatic attraction effect.

The above embodiments are for better understanding of the present invention, and the scope of the invention is defined by the appended claims. 

1. A 3D dusting sheet, comprising: a base sheet, an electrostatic dusting sheet on the base sheet, and one or more linings disposed between the base sheet and the electrostatic dusting sheet, wherein the one or more linings bulge partially a main body of the electrostatic dusting sheet, such that a surface of the 3D dusting sheet becomes three-dimensional; meanwhile, one or more three-dimensional spaces are formed on the surface of the 3D dusting sheet.
 2. The 3D dusting sheet of claim 1, wherein the electrostatic dusting sheet includes a structure of plural layers, and a plurality of fins and a plurality of storage spaces are disposed in the electrostatic dusting sheet.
 3. The 3D dusting sheet of claim 1, wherein the one or more linings consist of one or more cloth straps, and the cloth straps are disposed in the 3D dusting sheet at equal/unequal intervals.
 4. The 3D dusting sheet of claim 1, wherein the one or more linings are superimposed.
 5. The 3D dusting sheet of claim 1, wherein the one or more linings are disposed to be in a curve of S-shape.
 6. The 3D dusting sheet of claim 1, wherein the electrostatic dusting sheet is made of ultra-electrostatic micro-porous fiber, and the base sheet is made of chemical fiber or natural fiber, in particular a non-woven fabric formed of fusible fiber.
 7. The 3D dusting sheet of claim 1, wherein the one or more linings are made with leftovers from any manufacturing process of the 3D dusting sheet or made of additional materials.
 8. The 3D dusting sheet of claim 1, wherein the 3D dusting sheet cooperates with a flat mop.
 9. A method for manufacturing a 3D dusting sheet, comprising the steps of: preparing in advance a base sheet and an electrostatic dusting sheet which are rolled up; guiding the base sheet and the electrostatic dusting sheet which are rolled up to be continuous to a guide pulley respectively; during the process, the electrostatic dusting sheet is sent through a cutter wheel, whereby triangular fins are carved out on the electrostatic dusting sheet by the cutter wheel and storage spaces are formed; meanwhile, margins of the electrostatic dusting sheet are trimmed by the cutter wheel and trimmed-off leftovers are obtained; re-incorporating the leftovers of the electrostatic dusting sheet trimmed to be straps into the process by guiding means, so as to reuse the leftovers as linings and overlie the linings on the electrostatic dusting sheet in a required shape according to a required arrangement of the linings; combining the base sheet, the electrostatic dusting sheet, and the linings formed by the leftovers by fusion to form continuous 3D dusting sheet; trimming the prepared continuous 3D dusting sheet by cutting means to obtain a 3D dusting sheet with a desired length.
 10. The method for manufacturing a 3D dusting sheet of claim 9, wherein ultrasonic spot welding is utilized to weld the base sheet, the electrostatic dusting sheet, and the linings by spot for reducing power consumption of welding apparatus.
 11. The method for manufacturing a 3D dusting sheet of claim 9, wherein each layer of material and the linings are secured by physical stitching means.
 12. The 3D dusting sheet of claim 1, wherein the electrostatic dusting sheet is made of 100% of chemical fiber so as to cause electrostatic phenomenon spontaneously under friction.
 13. The 3D dusting sheet of claim 9, wherein the electrostatic dusting sheet is imbued with negative voltage such that fibers of the electrostatic dusting sheet carry negative electrons to provide the electrostatic attraction effect. 